Machine for piling saws



UNITED sTATEs PATENT OEETOE. ,A

PREsBERY NORTON AND FRANKLIN D. GOTTLEQOEl TIsBuRY, MAssAoHUsETTs. l

MACHINE Eon FILING saws.

Specification of Letters Patent No. 6,015, dated January 9, 17849:.

To all whom may concern:

Be it known that I, PRESBERY NORTON and FRANKLIN D. COTTLE, of Tisbury,in the county of Dukes and State of Massachusetts, have invented a newand useful Apparatus for Filing and Setting the Teeth of Saws; and we dohereby declare the fol-` lowing to be a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,making 'a part of this specification, in which- Figure l, is a.perspective view, and Figs. 2, and 3, are representations of the samedetached.

Similar letters indicate like parts in all the gures.

The saw V, to'be sharpened, is placed be` tween the clamp pieces A, andsecured between the same by the clips R, R. The

clamp pieces A, are supportedbetween the standards M, M, M, rising fromthe platform T, between which they can be moved freely to the right orleft.

B, B, are standards rising above the saw, with their upper endsconnected by a set screw C, the object of which is to retain the saw inits proper position while it is operated upon by the file.

H, is a handle or holder to which theifiley for operating on the saw issecured as follows: e, e', are adjustable heads having horizontalapertures g, g, which receive the ends of the file; the head e, works ina vertical mortise through H, and the head e', works in a vertical slotN, near the end of H; O, is a set screw passing through the end of H,into the slot N, having a collar on its inner end which presses againstthe head e: by turning the screw O, in one direction, a file can besecured between the heads e, e', and by turning it in an oppositedirection the heads will be separated and the file can be removed.

i, z', are screws rising from the heads e, e, by which they can beelevated and depressed by means of the nut-s f, f, as represented inFig. 2. The file holder H, works in mor.

the pointl d, desceding from the extremity I of the spring arm m,projecting fromone of the standards Gr, taking into one of the aperturesin the curved scale'pl'ate K, let into the platformT. The file handle H,rests and' slides upon the upper ends of the adjustable metallic platesJ, vJ the bearing plates J, J, are let into the sidesvofthe standardS G,G, and` secured in any desired position by means of the set screws t,passing through slots in the plates, into nuts let into the standards. A

By means of the adjustable bearing' plates J, J, one end of the file canbe elevated and the other end depressed, by which-means the le can beoperated at any angle of inclination that may be desired.

The movement of the clamp A, upon the platform T, is regulated andadjusted to suit the space between the teeth of the saw to be sharpened,and set by means of the horizontal perforated gage plate L, secured zo Yto one side of the base of the clamp, in com-y t of the apertures intheplate L, and retains Y the same, (in combination with thestandards B,B,) in the proper position for the file to operate upon the saw and forthe projections F, F, to` set theteet-h. The teeth of the saw are set bymeans of the elastic .metallic standardsD, D, having projections F, F',on their inner sides, near their upper ends, (as represented in Fig.3,)r and being connected by a set screw E. The projection F, has aninclined recess ct, on its inner end,` and the projection F, has aninclined face` v3,' yonv it-s inner end'` corresponding there! with. Thefaces of the projections F, F,

are suiiicient-ly inclined to give to the saw teeth theirproperposition, by turning the set screw E, and closely embracing theteeth between the same. The projection F, is se- Cured to its standardby means of a slot and set screw in such a manner that it can beelevated or depressed to correspond With the height of the saw teethplaced in the clamp. One half the teeth of a saw-every other one-areiirst set in their proper positions, the saw is then taken out of theclamp, and its position being reversed and 'again secured in the clamp,the other'half of its teeth are set in the saine manner. Y

We generally plaee friction rollers in the bas'e ofthe saw clamp forthel purpose of giving'to the same greater freedom of Ino-` tion uponthe platform.

Having thus fully described our apparatus for filing and setting theteeth of saws,

whatwe claim as our invention and desire to secure 'by Letters Patent,is-

The combination and arrangement of the operating lile` handle H, theadjustable

